Crankset device
CA 2352977 A1 · Owner: Jacques, Andre · Inventors: Jacques, Andre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To understand the present invention, it is first necessary to understand thoroughly the following discovery concerning the calf when pressure is applied on the pedal: there are two optical illusions which mislead everyone (figures 21 and 22 represent a lower limb pressing on a pedal (6) being the thigh, (11) the leg, A+B the foot and (1) the ankle). The first illusion (fig 21) is to believe that the calf (M) increases the pressure on the pedal. The second illusion (fig 22) is not to see the force M' which cancels the force M. The entire pressure on the pedal is derived from the thigh only the calf contraction being merely loss of energy. The invention consists in replacing the pedal by a …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed November 3, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 3, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.